Tool for servicing battery terminals



Nov. 21, 1944. w. P. NAIL.

TOOL FOR SERVICING BATTERY TERMINALS Filed Feb. 11, 1944 2 Sheets-Sheet 1 Nov. 21, 1944,. a w. P. NAIL TOOL FOR SERVICING BATTERY, TERMINALS Filed Feb. 11, 1944 2 Sheets-Sheet 2 ifiw f y c ww Patented Nov. 21, 1944 S ATES PATEN v OFFICE 2,363,350 M Y I 'rooL FORSERVICING'B'ATTERY r 7 TERMINALS Walter P. Nail, Toronto, Ontario, Canada 7 Application February 11, 1944, Serial No. '521,948

2 Claims.

My invention relates to a tool for servicing the terminals of storage batteries.

The salient object and accomplishment of the invention is to provide a, simple tool comprising a single operating handle, that may be utilized with great advantage in removing battery termi-' nals from their posts.

'In'its preferred embodiment the tool of the present invention comprises: (1) a bifurcated foot adapted to slide under a battery terminal to embrace the post whereon such terminal is tightly fitted or to which it is corroded; (2) a leg integral with and rising from one end of said foot to accommodate a lever pivot located substantially directly above the closed end of the shoe bifurcation; (3) a lever, having long andshort arms, turning on such pivot; and (4) a nose, on the short arm of the lever, defined by cam sur-, faces for engagement with the battery post, such nose permitting the terminal to rise around it under the influence of the tool when the lever is appropriately actuated.

These and other features, objects and advantages of my invention will appear from the ac-. companying drawings in which:

Figure 1 is a top planview, partly in section, illustrating my battery servicing tool as it appears before being manipulated into terminal lifting relationto a juxtaposed battery post and the terminal carried thereby; Q Fig. 2 is an enlarged end view of the tool;

Fig. 3 is a side view, partly in.elevation and partly in section, illustrating thetool as it appears after being shifted by one-hand manipulation into terminal lifting relation to a battery postand itsterminalg' v Fig. 4 is a side ,view,'partly in section and partly in e1evation,illustrating how the terminal rises around the nose of the lever when the latter is appropriately actuated; I

end of the foot bifurcation (see Fig. 5).

Extending through the bifurcation and being there pivoted by the screw-bolt I5 is a lever l5 having long arm I! and short arm I8. Such short arm I8 is conformed to present a nose l9 defined by the curved cam surface 20 and the relatively Fig.5 is an isolated plan view and Fig. 6 is an t isolated side view of the bifurcated foot; and

Fig. 7 is an isolated perspective view of the nose-carrying end of the lever.

Similar reference numerals refer to simila parts throughout the several views. Thetool comprises a flat foot l0 bifurcated to provide the pair of toes II which preferably are provided with beveled or otherwise edged'tips l2 to facilitate the insertion ofthe shoe under a bat tery terminal to be removed from its post.

Integral with and rising from the foot I0 is a leg l3 whichhas itsupper end bifurcated at M and. is provided with apertures Hi to receive a lever pivot in the form of a screw-bolt l5. At-

lift terminal C straight cam surface 2| which at one end lies quite close to the lever fulcrum. When the parts are positioned as shown in Fig. 3, the lever contactsthe closed end of bifurcation I4.

I prefer to providethe short arm of the lever with a bit 22, and to conform and broach the longer lever arm, as at 23, so that it will serve as a box end wrench suitable for application with nuts of the character commonly associated with I battery terminals.

At A I have shown a storage battery comprising post B and its terminal C, the terminal being provided with the usual opposed lugs c and the bolt D and its cooperating nut E, for drawing such lugs 0 together in order to tighten the terminal upon the post.

Let us assume that the nut E has been loosened and that my improved tool is to be utilized to from tight engagement with post B. I

The edged tips I 2 of the toes ll of the bifurcated foot [0 are inserted under the lower surface of terminal'G. Then, with the tool parts positioned as shown in Fig. 3, the shoe is'forced by one-hand manipulation of the lever into the position shown in such figure, that is, with the foot Ill underlying the terminal C with its toes straddlin the post B. The lever is then moved from the position of Fig. 3 to the position of Fig. 4. As such movement begins, the nose-defining surface 2| bears with great mechanical advantage against the top of the post B to start the upward movement of the terminal C. As

the lever. approaches its position of Fig. 4, the

curved cam surface20 acts against the post top to complete the lifting of the'terminal well to the top of the post and around the lever nose H).

In the case of a terminal found to be badly corroded to its post, the terminal lugsc may be slightly pried apart with the aid of bit 22 before the terminal lifting operation is performed as just described.

Having thus illustrated and described my invention, what I claim' as new and desire to secure by Letters Patent of the United States is:

1. A battery terminal servicing tool comprising a bifurcated foot adapted for insertion under a terminal in straddling relation to a post on which the terminal is mounted, a leg rising from the foot and extending inwardly toward the bifurcation to overhang the closed end of the foot bifurcation and a portion of a terminal post when the terminal rise to lie around it, when the lever is actuated to diminish the vertical-distance -between the foot and the nose.

-2. A battery terminal servicing tool comprising a. bifurcated foot adapted for insertion under a. terminal in straddling relation to a post on which the terminal is mounted, a leg rising from said foot and having a bifurcated upper end which overhangs the closed end of the foot bifurcation and a portion of a terminal post when in applied position, a lever, having long and short arms, pivoted in the bifurcated upper end of the leg, and a. nose on the short ann of the lever adapted to bear against the top of the post, and to have the terminal rise to lie around it, when th lever is actuated to diminish the distance between the foot and the nose.

W. P. NAIL. 

